As one of the two clutches is used for those gears it seems likely it is a clutch problem. I would take it to the dealer soon even if you get no immediate satisfaction - this will at least preserve you warranty rights.
Focus Fanatics Ford Focus Forum offers many fun ways for you to engage with other Ford Focus Owners from across the world. Whether it be about the aftermarket performance modifications, technical how-to's, European tuned suspension or awesome fuel economy similar to the Acura TLX or Fiesta ST. You can find all Ford Focus and Focus ST related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area.